Classification
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All Names

  • Scientific Names
    • Mahonia nervosa
  • English
    • Dull Oregon grape

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Recent observations

Photos / Sounds

What

Dull Oregon Grape Mahonia nervosa

Observer

danielleflock

Date

October 29, 2014 05:51 PM PDT

Place

(Somewhere...)

Description

Erect, rhisomatous, evergreen, stiff-branched shrub, to 60 cm tall; leaves like holly; bark and wood yellowish.

Leaves: Clustered, long, alternate, turning reddish or purplish in winter, with 9-19 leathery leaflets, somewhat shiny on both surfaces; leaflets oblong to egg-shaped, with several prominent spiny teeth.

Flowers: Bright yellow, many-flowered erect clusters to 20 cm long.

Fruits: Blue berries about 1 cm across with few large seeds and whitish bloom, in enlogated clusters, edible.

Photos / Sounds

Square

What

dull oregon grape Mahonia nervosa

Observer

artger24

Date

October 25, 2014

Place

Millersylvania (Google, OSM)

Description

Serated edges, veins that go to the end, and evergreen leathery leaves. Clusters of the Oregon grape, surrounded by conifers, ferns and mosses, etc.

Photos / Sounds

Square

What

dull Oregon grape Mahonia nervosa

Observer

sgadber

Date

October 10, 2014

Description

Leaves are alternate, leaflets leathery, shiny, paired, with spiny teeth (like holly) around 9-19 leaflets per leaf. Fruit or flower not visible this time of year. Shrub varies in size, this individual around 50 cm tall.

Photos / Sounds

What

Dull Oregon grape Mahonia nervosa

Observer

heatherrackley

Date

October 20, 2014

Description

Pinnately compound with 9-19 toothed leaflets. Leaves arranged in a whorl.

Photos / Sounds

Square

Observer

hammett2

Date

October 19, 2014

Description

Erect, rhizomatous, evergreen, stiff-branched shrub, to 60 cm tall; leaves like holly, clustered, long alternate, with 9-19 leaflets oblong to egg-shaped, with several prominent spiny teeth.

Photos / Sounds

Observer

daninord

Date

October 17, 2014 03:20 PM PDT

Description

The Dull Oregon Grape is in the family Berberidaceae. Plant grows about 1-2 ft in height. Leaves are compound with leaflets which are oppositely arranged. Leaflets are pointed, severely toothed and has three mid veins. Leaflets are leathery and smooth to the touch.

Photos / Sounds

Square

What

Dull Oregon grape Mahonia nervosa

Observer

chantayanderson

Date

October 10, 2014 06:59 PM PDT

Description

This is an evergreen shrub that grows about 1-2 feet high in the under story of forests. Has dark green alternating leathery leaves, that are shiny on the top and have many teeth on the edge.

Photos / Sounds

What

Dull Oregon grape Mahonia nervosa

Observer

ponyboy22

Date

October 9, 2014 04:02 PM PDT

Description

Found just off of Olympia Woodland Trail, 5 minute walk from Wheeler Ave access point.
I-5 static is loud and incessant.
Weather is clearing up: clouds burning off and sun emerging...none reaches my subject. 60F or more.
The shrub appears young. Upper stem not yet hardened and remains light green, only two off-branches from original stem. Leaves are stiff and somewhat glossy. Veins clearly visible from underside of leaf and fan out from the base in a geometric sort of pattern. Although the leaves are serrated, each point is flexible and not bothersome to touch. No discernible odor to the shrub. The lower stem is a mix of dark/light browns and grays, almost scaly to the touch, much thicker and more rigid than upper stem. A neighboring Mahonia nervosa is plagued by something that has eaten away at the edges of its leaves.

Photos / Sounds

What

Dull Oregon grape Mahonia nervosa

Observer

cherylharai

Date

October 1, 2014

Description

Leathery leaves arranged pinnately compound spiny leaflets

Near Longhouse

Photos / Sounds

Square

What

Dull Oregon grape Mahonia nervosa

Observer

loloscheiner

Date

August 28, 2014 11:19 AM PDT

Photos / Sounds

Observer

broichan

Date

July 16, 2014 10:35 AM PDT

Photos / Sounds

No photos or sounds

What

dull oregon grape Mahonia nervosa

Observer

happysea

Date

June 2, 2014
View all observations

Description from Wikipedia

Mahonia nervosa, commonly known as dwarf Oregon-grape, Cascade Oregon-grape, or dull Oregon-grape, is a flowering plant native to the northwest coast of North America from southern British Columbia south to central California, with an isolated population inland in northern Idaho. It is especially common in second growth, Douglas-fir or western redcedar forests, making use of those pools of sunlight that intermittently reach the ground. Some authors place the genus Mahonia within the genus Berberis.

No range data available.